21.12
sun
sun
Day
81°F
W 15 mph
Precip.
100%
100%
Night
77°F
W 15 mph
Precip.
70%
70%
22.12
mon
mon
Day
81°F
W 14 mph
Precip.
0%
0%
Night
77°F
W 11 mph
Precip.
80%
80%
23.12
tue
tue
Day
81°F
W 14 mph
Precip.
100%
100%
Night
77°F
SW 16 mph
Precip.
73%
73%
24.12
wed
wed
Day
79°F
W 14 mph
Precip.
100%
100%
Night
77°F
SW 11 mph
Precip.
100%
100%
25.12
thu
thu
Day
79°F
W 12 mph
Precip.
100%
100%
Night
77°F
SW 12 mph
Precip.
74%
74%
26.12
fri
fri
Day
79°F
W 12 mph
Precip.
78%
78%
Night
75°F
SW 11 mph
Precip.
100%
100%
27.12
sat
sat
Day
79°F
SW 11 mph
Precip.
28%
28%
Night
75°F
SW 9 mph
Precip.
0%
0%
sea water
temperature
temperature
| Castries |
monthly
weather
weather
| Castries |
current
weather
weather
| Castries |
14 days
forecast
forecast
| Castries |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 82.5°F. The highest and lowest sea temperatures during the month were 82.9°F and 81.9°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 82.2°F. The highest and lowest sea temperatures during the month were 82.8°F and 81.7°F.
Air temperature in Castries, °F
Precipitation total in Castries, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Castries
Castries on a weather map
24 Hours Forecast
Castries
Local time: 07:19
December 21, sunday
0900
81°F
W
16 mph
16 mph
1200
81°F
W
15 mph
15 mph
1500
79°F
W
16 mph
16 mph
1800
77°F
W
17 mph
17 mph
2100
77°F
W
16 mph
16 mph
December 22, monday
0000
77°F
W
15 mph
15 mph
0300
77°F
W
13 mph
13 mph
0600
77°F
W
14 mph
14 mph
